It appears that Sony has been putting nasty payloads onto its copy-protected CDs in the form of a rootkit. "Not only had Sony put software on my system that uses techniques commonly used by malware to mask its presence, the software is poorly written and provides no means for uninstall. Worse, most users that stumble across the cloaked files with a RKR scan will cripple their computer if they attempt the obvious step of deleting the cloaked files. This is a clear case of Sony taking DRM too far."